29225081825 has 24 divisors (see below), whose sum is σ = 37488672000. Its totient is φ = 22577140800.

The previous prime is 29225081783. The next prime is 29225081827. The reversal of 29225081825 is 52818052292.

It is not a de Polignac number, because 29225081825 - 2¹⁸ = 29224819681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29225081827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321551 + ... + 402299.

It is an arithmetic number, because the mean of its divisors is an integer number (1562028000).

Almost surely, 2^29225081825 is an apocalyptic number.

29225081825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29225081825 is a deficient number, since it is larger than the sum of its proper divisors (8263590175).

29225081825 is a wasteful number, since it uses less digits than its factorization.

29225081825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81257 (or 81252 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 29225081825 in words is "twenty-nine billion, two hundred twenty-five million, eighty-one thousand, eight hundred twenty-five".